Subtract 70/7 from 24/15
1st number: 1 9/15, 2nd number: 10 0/7
24/15 - 70/7 is -42/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
24/15 = 24 × 7/15 × 7 = 168/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
70/7 = 70 × 15/7 × 15 = 1050/105 - Subtract the two like fractions:
168/105 - 1050/105 = 168 - 1050/105 = -882/105 - After reducing the fraction, the answer is -42/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/15-70/7 24/30-70/7 24/15-70/14 72/15-70/7 24/45-70/7 24/15-70/21 24/75-70/7 24/15-70/35 24/15-70/49